Roller-bearing.



P. M. PREEBURG.

ROLLER BEARING. APPLICATIONPTLEDOUI.1'I,1E04.

Patented May 18, 1909.

A TTORN Y.

UNITED sTAfrEs TENr OFFICE.

FRANK MARION FltlCEUUltU, 0i" PHILADELPHIA, PENNSYLVANIA, ASSIGNUI. T0 KING FIFTH WHEEL COMPANY. Oh lllIi,Al')ELl HI PENNSYLVANIA, A (OILPORATION OF PENNSYL- VANIA.

ROLLER-BEARING.

Patented May 18, 1909.

Application flted October 17, 1904. serial No. 228,908.

.ln roller bearings provided with iorizontnl I rollers which are employed to sup wit the bodies of ours end vehicles generally, great dillieulty has been experienced in preventing ilnt portions from wenring u ion the rollers due to the slight lorwnrd and lmrkmotion ol the surfaces engaged with. the rollors when the ear or vehir-lh iss tnrtrd ore-topped or varies its speed of l-rnvele' Mirth-uburly is this the eusewhen the rollers are supporting it 'reat weight. i

- be object of my present invention is, to overcome this di'llieulty and to provide it roller ben-rin r luiving itdvnntngesnot heretoforenttnined The'invention consists in the novel ronstruotion and combinations of parts which will be hereiiml'ter fully described and claimed.

In the drawings -1 igure 1 is a central vertical section through my improved roller hem" Fig. .2 is it sectional [)lttll view theroo its on the line 2-11; of Fig. l.

1 end 2 dosi mite upper and lower circular bearing memllizrs, respectively, which are adapted to turn relatively to om-h other about the central or king bolt 3. The con struotion heroin shown and described is poitieulnrly adapted for use in connection with railway ears, the member 1 being adopted to support the boom 4 of the our body and the member 2 being :tdnptod to be supported by the beam 5 rd the truck. The opposing noes ol' the members 1 and .2 nearthe, outer edges thereof are provided with nnnulnr ribs 6 and 7, respectively, forming the side walls of opposite y disposed annular channels within which is arranged at series of OQHlCltl rollers 8. These rollers h are adapted to roll freely upon an inclined bearing surface 9 on the membiirfl and to receive the inelined bearing; were 10 of the member 1 to supqglittter membeizg, The respective ends of the rollers 8 are provided with flanges 11 wlueh enter grooves formed in the members l and .1 adjacent to the sides of the bearing surfaces!) and '10, as shown. The rollers 8 are arranged in close relation to each other. and support the member 1 upon the member 2 m a manner to provide a very efiicient nutiiriction bearing between said members or the enr'botly and the car truck.

The lower member 2. is provided 'with an upwardly exte-ndin hub 12 which is fitted to and surrounds t 6 bolt 3 and the upper member l is provided with u downward] extending hub 13 which surrounds the hu 1;, its shown; The top 'of the hub 12- is provided with two opdositoly-disposed probe-- tions 14 which are itted to and adapt to turn within nn nnnulnr groove 15 [Wt] in the top of the hub 13 and thereby"'pievent the nxml movement of the members i and 2 own from enrh other und the consequent In order to provide for the itssembling and.

parting of the members 1 and .2 I extend through the inner wnll of the'lnib lam-jute o ppositoly-disposed vertii'nl grooves 1 6 which are nrrltnged on a. line extendin centrally and Ion 'itudinnlly oi the on! ho y, it being observer that the projections 14 are arranged on at line extending at ri ht angles thereto. Thus it will be seen that 3' giving either of members 1 or 2 n quarter turn or moving it at right angles to the position shown, the protections 14 will be moved into register wit l the grooves 16 and thus permit the assembling or porting oi the members I. and 2, as desired.

I The king bolt 3- is made tapering and ex tends throu 'h correspomlingly to ieredo enings in the main 5, the hub 2 and. a bus ring 17in the beam 4. lrojeetin Y from the upper end 01' the bolt 3 is a square liend 18 our the lowerend ol' the bolt is provided with it screwthrended projeetionlQ to which is. litted it not 20 adapted to tnkengoinst the bottom of the boom 5 to hold the bolt in .ilnee. Arranged on top of the beam 4 and htted to and surrounding the square head I8 is a late 21, and arranged agaimt the bottom of t is been: 5 and fitted to and surrounding the nut 20 IS a plate 22; the late 21 being held in place b bolts 23 whic secure the member 1 to the beam 4; and the plate 22 being held in place parting of the members 1 and :2 or the r'ar rin s 28 of felt or other suitable material ,lprovid e the ad jacent ed gcs ol the ribs 6 and by bolts 24 which secure the member 2 to the l covers the horizontal space between the beam 5. By removing the plate 22, the nut members 1 and 2.

20 may be adjusted to draw the bolt 3 to take I, I claimthe bolt and the parts en 1. A center bearing for railway cars comup wear between gaged therewith The plate 21 engaging the prising u per and lower bearin members square head 18, serves to prevent the bolt 3 iaving in 'erlocking means to hold the memfrom turnin' during the turning of the nut l bers against vertical separation and inter- 20. After he bolt has been adjusted and i mediate anti-friction devices, said interlockthe plate 22 replaced, the latter, engaging the ing means being separable when one of said to prevent the bearing members is turned to an abnormal nut, serves as a locking device position.

nut from working loose The inner face of the hub 13 is provided i with an annular channel 2-5 in which is arirising upper and lower bearing members ranged a circular series of conical rollers 26, l raving integral interlockin flanges to hold the axis or the roller convergin toward a l the members against vertica separation, and central point above the series. esc rollers intermediate anti-friction devices, said inter- 26 beara ainst the inclined baseol' the groove locking flanges being separable when one of 25 and t e inclined outer face of the hub 12, said members is turned to an abnormal pcthe inclined base of the groove 25 and the sition. inclined face of the hub 12 both converge to- 3. A center bearing for railway cars c0mward thesanie'point with the rollers 26. The l prising upper and lower bearing members respective ends of the rollers 26 are sockcted and intermediate anti-friction devices said for the reception of balls 27 which take bearing members havin oppositely extendagainst the up )er andlower walls of the ing flanges, said llangosfia groove 25 and t us prevent endwise motion integral angular )rojecting parts arranged to of the rollers. {i te oc n or er to prevent the vertical Inorder to prevent the acuniulation of separation of the bearing members, said indust etc. within the channels l d! the rollers S tel-locking parts being separable when one of said members is turned to an abnormal 7 fvizith annular grooves to which are fitted position. p r

In testimony whereof I allix my signature between the ribs 6 in presence of two witnesses.

' FRANK MARION FREEBURG.

which cover the spaces and 7; and in order to still further prevent the accumulation of dirt etc. I provide the Witnesses: outer edge of the member 1 with a down- Baum H. GAMBLE, \vardly extending annular flange 29 which A. V. GROUPE.

2. A center bearing for railway cars comemg provided with 

